Measurement and correlation of liquid-liquid equilibrium for the ternary system 2,2,3,3,4,4,5,5-octafluoro-1-pentanol + methanol + water at (298.15, 308.15, and 318.15) K

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• 作者：Dongmei Xu ; Lianzheng Zhang ; Jun Gao ; ^{gao@sdust.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Zhishan Zhang ; Zhifang Cui
• 关键词：LLE ; 2 ; 2 ; 3 ; 3 ; 4 ; 4 ; 5 ; 5-Octafluoro-1-pentanol ; Methanol ; Water ; NRTL
• 刊名：Fluid Phase Equilibria
• 出版年：2016
• 出版时间：15 February 2016
• 年：2016
• 卷：409
• 期：Complete
• 页码：377-382
• 全文大小：729 K

文摘

Ternary liquid–liquid equilibrium (LLE) data of 2,2,3,3,4,4,5,5-octafluoro-1-pentanol + methanol + water were measured at (298.15, 308.15, and 318.15) K under atmospheric pressure. Both the Bachman and the Hand equations were applied to check the reliability of the tie-line data, and their correlation coefficient (R²) were all close to 1. Meanwhile, the nonrandom two-liquid (NRTL) activity coefficient model was applied to correlate the experimental data, which the results showed good agreement with the measured LLE data, and the binary interaction parameters were regressed. In addition, the distribution coefficients and separation factors were determined by using the experimental data and discussed in detail.